Trijicon ACOG 4x32mm Scope - Dual Illuminated Chevron - Red

Manufactured by Trijicon
Manufactured by Trijicon
3 Reviews
$1,099.99 $1,199.99

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The Trijicon ACOG TA31F brings precision aiming and close quarters speed together in an advanced, combat-ready, and compact package. Extremely durable, these proven combat optics feature dual-illuminated reticles lit by fiber-optic for daylight illumination and tritium for low light operations. Offering unparalleled field of view, simplicity, and glass clarity, the ACOG is the ultimate do-everything optic for the modern sporting or combat rifle.

The TA31F is a fixed 4x optic designed to provide fast hits at close quarters with both eyes open. The passively illuminated chevron reticle features bullet drop and ranging out to 800 meters with standard 55-grain 5.56 NATO. Includes TA51 thumbscrew base for picatinny mount.

  • Expansive field of view
  • Superior optical clarity
  • Reticle illuminated by fiber optics and tritium
  • Bomb-proof construction
  • Compatible with standard ACOG mounts
  • TA51 thumscrew base for flat-top rifles included
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Click Value1/2 MOA
Eye Relief1.50 in
Field View 10036.80 ft
Focal PlanePrism Scope
Mount CompatibilityTrijicon ACOG
Night Vision CompatibleNon-Compatible
ReticleTrijicon Chevron with M16 BDC
Reticle ColorRed
Turret FeaturesCapped Turrets, Finger Adjustable
TypeFixed Magnification
Weight15.8 Oz
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

3 reviews

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Worth every penny

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This is one of the best optics I have ever owned. Doesn't beat my SpecterDR, but it comes close due to its clarity and wide field of view. Durability is also top notch and you can abuse this optic all day long and not worry about it failing. Primary arms was also nice enough to include some nifty targets for zeroing it. I didn't use the targets, but they were neat nonetheless.

Combat-Proven and made to be abused.

by -

Excellent optic. The clarity of the glass on this optic is absolutely unmatched by anything else at this price point. While this optic does not have a variable zoom setting, that does not mean that it isn't adaptable. Using the bindon aiming concept (basically, looking through the optic with both eyes open) allows this to be used in CQB to a reasonable level of confidence). For CQB, I actually ended up taking a Trijicon RMR that I already own and buying a mount from Trijicon, which allowed me to mount it on top of the optic and use it that way. The lack of variable magnification is something that many will whine about, but I consider this to be a plus for the ACOG, which allows it to claim the title as arguably the single most combat-tested and worthy optics ever fielded. Less moving parts is a good thing, which is something that a non-variable optic has.

Still The Best Combat Optic


I have used an abused ACOGs for a decade, 8 years with issued M150s as an Infantryman in the Army, and a year now with my personal TA31F. They have crystal clear glass, are extremely durable, very little parallax, and are crystal clear for my astigmatism. They can withstand a beating, I have jumped out of planes with them, and been in combat with them, and never seen someone break one in person. I will always recommend ACOGs to most people over LPVOs, because to me they are better for most people (not all though).